Propeller



Dec. 1924. 1,518,544

M. s. OKUN PROPELLER Original Filed Dec. so. 1918 2 Sheets-Sheet 1 Dec. 24- 1,518,544

M. S. OKUN PROPELLER Original Filed Dec. 30 1918 2 Sheets-Sheet 2 Wham L Patented Dec. 9,

UNITED 1511 .IMQSESS. mm, or PHILADELPHIA, PENNSYLVANIA.

Application filed Becember 30, 1918, Serial No, 268,302.

PROPELLER.

2' u (all whom it may concern Be it known, that I, Mosns-S; OKUN,: a citizen of the United States, residingat 670 North 12th Street, Philadelphia,

county of PhiladelphiaandState ofiPennsylvania, 'tul Improven'ients have invented certain new ands'use in i Propellers, .ot whihh the following is a specification.

The object of my invention is to construct a simple and cheap propeller't'or the propulsion of marine or air vessels or of :any other device for transportation.

It is further the bjectof .my invention to construct a propeller which will have a very highefiiciency its high 1 e'fiiciency at vessel, so that the speed and which will retain different: speeds. otzthe could be varied without aliectingveryunu'ch the eth'ciency of the propeller.

In order to attai a body, which rotates with n such results, I employ which is mounted on ashaftiand the same. *Saidabody is provided-with means to set water or air into rotary HIOlZlOIl. I also employ means intmy invention which uti developed'from the lize the centrifugal force rotation of the said air or water to create a pressure upon said rotary body,

which is transmitted longitudinally to the axis of the shaft and to the vessel.

With these and o ther objects-'ina view, my

invention consists innovel and peculiar arrangements and i c oiribinations 1 at several parts of the apparatus-all as hereinafter fully described in the specifications and then pointed out in the claims.

invention is illustrated in the accomthe tront view of my propeller, Fig. 2 represents the same view without the cover or ring 9. Fig. 3 IS a longitudinal sectional view of my invention. Figs.

4:, 5, 6 represent axial sectional views of different modifications of my invention.

Similar numbers refer to similar parts throughout all views.

1 is a casing, which is mounted by the blades 2, 2, on the main shaft the covers 9 and 9 ings in the covers 9 water or air enters cover 9 is of a smaller enlarged portion of the 7. The casing 1 is provided with (Fig. 3) 5, 5 are openand 9 through which into the casing 1. The

diameter than the di- 9 serves as an out let for the water or air in the L'dlfiWlliilll through theopenings 5,.5.

Benewed March 18, 1924.

The

long vanes or blades 2, 2, and the-' short vanes 3, 3, divide the inside chamber of-the xcasin'g 1' in: compartments, into-which .wa-

*ter or-alr is forced" throughv the openings =5;

15;;said water or 'air, being set into-rotary centrifugal force motion by the hlades2, 2, and 3, 3,:iszdis- ."charged from the casing'lrby' the-action 01 through the openings Y casing, so. as to rotate withithe same.

Such screens-or shields act as-receivers for the "water tor air idischarged 'trom the.

casing.

of the" said: vessel The said water .or air, after being discharged from the casing, still continues-its *rotary% motion in the idirection ot the motion of the casingand the'screenslO The centrifugal force of the rotating water or airproduces apressure UP-OILtllG screenor-fshield,'iwhicli is transmitted "to fthevessel orvehicle in. the direction of the :motion of the same.

The'shaft '7 with the propelleriattached to thesameisset in motion-by any; power delivery device, 7 such: asst c an'i, fgas, electric or v anyother. engine.

; openings 5, m5, and through Water or air is drawn in through the :the compartments or channels 4,4,- and isdischarjged from the casing through openings 4, 4

The action of the centrifugal force of the rotating water or air produces a pressure upon the walls of casing 1. The cross-sectional areaof the cover 9 is greater than that of the cover 9, and therefore we will have a difference of pressure upon the cover 9 which will be transmitted to vessel or vehicle in the direction of the motion of the same. In order to absorb the mechanical energy of the water or of the air after the same is discharged from the casing 1, the screens 10 10 10 are used.

These screens are funnel-shaped and are turned with their narrow end in the direction of the motion of the vessel or vehicle.

The centrifugal force of the water or of the air which rotates with the screens produces a pressure upon saic. screens which is also transmitted to the vessel or vehicle in the direction 01E. the motion of the same.

Figs. a, 5, 6 represent different forms of fications may be made in the different parts screens. Fig. 4: represents a screen of conical shape. Fig. 6 is of curved shape. Fig. 5 of conical and curved shape.

I wish to be understood as not limiting my invention to the precise forms of construction herein set forth, as various modithereof without, however, departing from the spirit of my invention.

Having thus described my invention, what I claim and desire to secure by Letters Patent is 1. A propeller comprising a body mounted upon a shaft'and adapted to rotate with shaped screen or shield attached with its narrovs end to said rotating body and adapt-- ed to receive the rotating water or air which is set in motion by the said rotating body.

3. A propeller comprising a casing mounted upon a shaft and adapted to rotate with the same, said casing having means to draw in water or air and to set the same in rotary motion; an opening or openings in one side of the casing to discharge the water orair from the same in the direction opposite to the direction of the motion of the vessel or vehicle, a funnel-shaped screen or shield attached with its narrow side to the casing to receive the rotating water or air discharged from the said casing.

4. A propeller comprising a casing mounted upon a shaft and adapted to rotate with the same, an inlet for water or air in the said casing, blades or vanes provided in the same to set the water or air into rotary motion, an outlet in one of the sides of the casing to discharge the said water or air in the direction opposite to the direction of movement of the Vessel or vehicle, a funnelshaped screen or shield attached with its narrow side to the casing to receive the rotating water or air discharged from the said blades.

5. A propeller comprising a shaft, blades or vanes mounted upon said shaft and which rotate with the same, said blades or vanes being adapted to set water or air in rotary motion, a funnel-shaped screen or shield to which the rotating water or air is directed so as to produce aepressure upon the said screen or shield by the centrifugal force of the said rotatmg water or air, and means to transmlt said pressure to the vessel or vehicle.

.6. A propeller comprising a shaft, blades 'or vanes mounted upon said shaft andwhich rotate with the same, said blades or vanes being adapted to set water or air into rotary motion, a funnel-shaped screen or shield attached to the blades and upon which the ro-.

tating water or air is directed so as to produce a pressure upon said screen orshield, which is transmitted to the shaft in the direction of the movement of the vessel or vehicle. 7

In testimony whereof I my signature in the presence of two witnesses.

- MOSES S. OKUN. I Witnesses:

MARY H. WILLIAMS, FRANK O. MONALLY. 

